for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Apparatus for electrographic processes using a charge pattern > for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

CPC:

Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) > for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

CPC subdivides this area 3x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1995.

Child Classifications

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G03G 15/04009 CPC only CPC only
G03G 15/04018 CPC only CPC only
G03G 15/04027 CPC only CPC only
G03G 15/04036 +2 CPC CPC only CPC only
G03G 15/0409 CPC only CPC only
G03G 15/041 with variable magnification since 1995 +1 CPC IPC+CPC Available in IPC and CPC
G03G 15/043 with means for controlling illumination or exposure (G03G15/041 takes precedence) since 1995 +1 CPC IPC+CPC Available in IPC and CPC
G03G 15/045 with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas (G03G15/36, G03G21/06 take precedence) since 1995 IPC+CPC Available in IPC and CPC